Finding the Fourth Proportional to 1,295,569.12, 1,787,888.16 and 722,646.08
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Solution
The fourth proportional to 1,295,569.12, 1,787,888.16 and 722,646.08 is: 997,253.14
Step by Step Solution
- Step 1: Write the proportion equation
1,295,569.12 : 1,787,888.16 = 722,646.08 : x - Step 2: Convert to fraction form
1,295,569.12/1,787,888.16 = 722,646.08/x - Step 3: Cross multiply
1,295,569.12x = 1,787,888.16 × 722,646.08 - Step 4: Simplify right side
1,295,569.12x = 1,292,010,370,302.41 - Step 5: Solve for x
x = 1,292,010,370,302.41/1,295,569.12 - Step 6: Final answer
x = 997,253.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.